For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical instruments, scanning the skies for artificial signals. Now, researchers are taking a different approach, this time looking much closer to home for alien artefacts that might already be in our Solar System.
Space News & Blog Articles
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NASA's Juno Spacecraft Could Intercept 3I/ATLAS as it Approaches Jupiter
Astronomers at the Pan-STARRS Observatory in Hawaii made history in 2017 when they detected 'Oumuamua, the first interstellar object (ISO) ever observed. Two years later, the interstellar comet 2I/Borisov became the second ISO ever observed. And on July 1st, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) in Rio Hurtado detected a third interstellar object in our Solar System, the comet now known as 3I/ATLAS (or C/2025 N1 ATLAS). Like its predecessors, the arrival of this object has fueled immense scientific interest and led to proposals for missions that could rendezvous with future ISOs.
How realistic is the xenomorph in 'Alien: Earth'? We asked a zoologist how its biology and lifecycle compare to real animals
To celebrate Alien: Earth landing on Hulu, we asked a zoologist if any of the Xenomorph's infamous characteristics occur in the natural world
Virgin Galactic's new Delta class space plane could fly as soon as fall 2026
The company is also looking at using its mothership aircraft that releases spacecraft at high altitude as a carrier platform for other customers.
1 year until the total solar eclipse 2026: Here's what you need to know
With just one year until the total solar eclipse of 2026, we take a look at everything you need to know for the ultimate eclipse adventure.
We tracked illegal fishing in marine protected areas – satellites and AI show most bans are respected, and could help enforce future ones
Marine protected areas cover more than 8% of the world's oceans today, but they can get a bad rap as being protected on paper only.
Watch the 2025 Perseid meteor shower peak tonight in free webcast
The annual Perseid meteor shower will peak overnight Tuesday (Aug. 12), and you can enjoy the event live online with the Virtual Telescope Project's webcast.
Today is the last chance to secure an exclusive NordVPN deal, perfect for watching Alien: Earth anywhere in the world
Alien: Earth's two-episode premiere is released today and you can watch it anywhere with our exclusive 79% off NordVPN deal, but you'll have to hurry.
Watch Europe's powerful Ariane 6 rocket launch for the 3rd time ever tonight
Europe's Ariane 6 heavy-lift rocket will launch for the third time ever tonight (Aug. 12), and you can watch the action live.
New Pluto mission could uncover dwarf planet's hidden ocean — if the 'queen of the underworld' gets to fly
A conceptual mission known as "Persephone" could explore Pluto and its moons for 50 years — if it ever gets funded and approved.
3I/ATLAS Is Very Actively Releasing Water
3I/ATLAS, our third discovered interstellar visitor, has been in the news a lot lately for a whole host of reasons, and rightly so given the amount of unique scientific data different groups and telescopes have been collecting off of it. A new pre-release paper from researchers at the Auburn University Department of Physics recounts yet another interesting aspect of the new visitor - its water content.
A Fast Radio Burst from the Early Universe
Astronomers at the South African MeerKAT observatory have discovered the most distant flash of radio waves to date, most likely stemming from activity around a magnetar.
Watch Vulcan Centaur rocket launch experimental military satellite today
United Launch Alliance is set to launch an experimental navigation satellite on the first national security mission of its new Vulcan Centaur rocket on Aug. 12. Watch it live here.
Know this photo? Test your knowledge of these famous firsts in our astrophotography quiz!
Test out your knowledge of these famous firsts in skywatching and astrophotography, from the first photos of Earth and the moon to the invention of telescopes!
Hubble spots stars forming in the Tarantula nebula | Space photo of the day for Aug. 12, 2025
The Tarantula nebula was recently captured by the Hubble Space Telescope, where the Scylla program helped create the colored image of this star-forming area.
Scientists may have found a powerful new space object: 'It doesn't fit comfortably into any known category'
Nicknamed 'Punctum,' this puzzling phenomenon is highly energetic, but is only seen in millimeter-wavelength light and cannot be explained by any known object.
Live coverage: ULA to launch first national security mission on a Vulcan rocket
A United Launch Alliance Vulcan rocket stands at Space Launch Complex 41 at Cape Canaveral Space Force Station ahead of the launch of the USSF-106 mission. Image: Michael Cain/Spaceflight Now
More than four months after it was certified to fly national security payloads for the United States government, United Launch Alliance is on the cusp of launching just such a mission with its Vulcan rocket.
How to watch 'Alien: Earth' online and from anywhere
'Alien: Earth' is the first-ever Alien TV show and it's finally arrived. Here's how to watch 'Alien: Earth' wherever you are on the planet.
CREAM: avoiding collisions in space through automation
Earth orbit is becoming increasingly crowded. With over 11 000 active satellites and many thousands more expected in the coming years as well as over 1.2 million pieces of space debris greater than 1 cm, the risk of in-orbit collisions has turned into a daily operational concern. ESA is investing in automation technologies that can help satellite operators respond more effectively to collision risks.
The Europa Clipper Mission Tests it Radar Instrument at Mars
On October 14th, 2024, NASA's Europa Clipper mission began its long journey to Jupiter's icy moon Europa. On March 1st, the probe reached Mars, where it conducted a gravity-assist maneuver. While orbiting the Red Planet, mission controllers back on Earth took the opportunity to test the probe's Radar for Europa Assessment and Sounding: Ocean to Near-surface (REASON). Once it reaches Europa, Clipper will use this radar instrument to probe beneath the moon's icy sheet and search for pockets of water that could lie within.
How Telescope Noise Could Help Us Monitor Climate Change
Our powerful, modern, ground-based telescopes have to deal with a lot of noise in the starlight they observe. The noise comes from Earth's atmosphere, which forces telescopes to use solutions like adaptive optics to filter it out. Researchers at the University of Warwick in the UK, in partnership with Spanish institutions, are developing a method to use that noise to measure greenhouse gases (GHGs) in Earth's atmosphere.
